Installation for warm-water supply.



H. '1UN KER$. INSTALLATION FOR WAHM WATER SUPPLY.

APPLICATION FILED MAR. I9. I9I4.

1 ,140,597. l. Palented May25, 1915 2 SHEETS-SHEET L I IIIIIIIIIIIImH.1uNK1-:Rs. INSTALLATION FOR WARM WATER SUPPLY.

A'PPLICATION FILED MAR. 19 1914.

, 0 `Patented May 25,1915. my.

` 69 2 SHEETS-SHEET 2.

Pfiff II I i snif-strasse .enea annesse; or

' rns'refraarrcn 'ros Wears-warns serena.

To all whoml 'itmafz/ cof/zoem s y Be 1t known' that l, H'Uoo Joannes, asuo jetzt of-'th'e German Emperor, residing at yand Kvhosenpostohceaddress isfiachen,

Frankenburg, Germany/have invented certain :lowland-useful improvementsin lnstallation for llVarm-'Water Supply, ci? which thevfollowing is aspecification.

rllhe invention relates to an installation for Warm Water supply,especially for heating with gas, and in'particular to an'installationfor producing Warm Water for central installation@ for instance inhouses and hotels.

The apparatus hitherto used for supplying Warm water may he divided intotwo' kinds. The rstkind'comprises the current heaters. kin which acurrent `of water is r warmed when flowing through the' heater, withoutany appreciable 'quantity of Water being stored in the heater, so thatthe production of heat is always the same as the withdrawal of heat, asplace at-the same time. The second kind comprises the storage heaters,in whicha certain. quantity of water is warmed in ad Vance, so that theproduction and Withdrawal of Warm waterydo not take place at the sametime and therefore do not need to Alarge lquantities of water,especially when rarely required, such as for instance in baths, inthe-kitchen for the supply of Warm Water for washing up, or in thevWashkitchen; for large and expensive heaters are required to keep theircomparatively large stores ot' Water permanently Warm, yand they areexpensive to work on account of the ycontinuous loss of heat v'v'hichtakes place for long periods. The liquid-heaters hitherto known are'therefore alone unsuitable for meeting satisfactorily the 'variedrequire ments of the warm Water supply in houses" and hotels. 'lt isalso impossible toootain Specicatlon of Letters etent.

both always talre There are in the nature of these AGEEN, GEEMLNY-raten-rea tray se, tera.

. Application let't March ywla. Serial ei a satisfactory solutiontfyfsirnply combining' a current 1rester and a storage heater, thisdemands a double andtliereroreexpensive system of l'pipes and dischargetaps, or-the various disch-arge taps must oe connected either to thecurrent heater or to the storage requirements, andl heater according tofinally because at such 'points ctconsumption-Where it very oftenhappens that sonre-v times large quantities and sonietimesisrnallquantities of warm Water are requiredleither two different and easily'interchangeable discharge taps must "ne prorided and used,

or-oy means ci' special char Hover: devices the taps must loseonnecteds, netimes to the storage heater and sometimes to the currentheater I The drawbacks are removed by themes.

anat-ion et a current ent invention by a con Heater and a storageheater, yhaving autor matic regulating devices and the like, con-fA pledtogether n1 their eeet and :mannerof Working, and connected to a singlecommon system ot pipes 1n such a manner -thator instance the currentheater supplies-^warm contents of warm :water entirely `or- 'partially,orvvhen. there is a tlt'iul demand -or water which is considerable perunitof time.

By means of the drawbacks of vboth the older types of apparatusVhitherto'known are avoided and their' individual. advantages are united,while additional advantages are obtained,

'so that an installation is created Whichjis very suitable for thecentral supplyof .warm

Water .tov consumption places. of quite-dif# ferent kinds. For onremoving small quantities of Water the storageheater first sup--plieswarm Water from its store to the .pipes is required, whiletliecurrent heater Where it this new type of installation` water to theconsumption pipev eithery only. when the storage heater has dischargedits,

which; is less suitable for :thi'spurpose docs not yet .participate inthe Warm water Servir water are `to be Withdrawn after each other lorwhen there isa great land sudden dexnandf 0315 when great 4quantities;of-

for warm'- Waterper unit of time, .for inf,"

stance .when nre arinf a cath does the cur-v rentheatercorne intooperation, setlist it e prepares WerraV Water tor the eonsnrnptiony,pipe andfolellvers .it to the 'consumption alpe either directly i or viathe storage .heater.. yIn the, latterfcase' the storage .-apparatuso`rio can if necessaryjyloe automatically stopped, so

that-its contenta remain inlreserreorsmll,

.rarni water consumption pipe 3.

.supply is never interrupted in spite of the storage heater.'

smallness of the actual Losses ofheat 'a re thereby also diminished.Off-particular value is the simplification ot the piping and ta ps andalso of the manipulation, as only one ta'p `device is necessary for theVarious purposes. This new arrangement is at the same time extremelyeconomical in the-consumption of fuel, as the larger current heater isgenerally inactive and therefore causes no loss at all, and the smallerstorage heater occasions only the comparatively small losses due toradiation of heat.v

The drawings show diagrams oi several embodiments of the invention, asfollows Figures 1 and 2 show cliagrannnatiealiy two different designs ofan installation. Fig. 3 shows a detail. Figs. -'land 5 showmodifications of a part of the second design of an installation. Figs.G42 show other embodiments of the invention with parts ot the heaterapparatus arranger1 over each other, at the side of each other andinside each other.

In the first embodiment the current heater l and the storage heater 2are disposed in line with each other and with the The cold atei' entersvthe current heater at fland leaves-it at', then enters'the storageheater at 6x and goes from it at 7 into the consumpton pipe 3. rl.`hewater thus flows first through the current heater 1. of which the burneris generali!!y not open or only a little even open when a small openanddoes not The wacurrent of water passes through.

vter therefore then enters the storage heater 2 in a cold or onlyslightly' warmed condi,- tion andis there completely heated and thensupplied tothe consumption pipe 3. When a small quantity of water isdrawn 'ofi' thereforel the current heater supplies 'cold'cronly'slightly warmed water to the storage heater 2. As soon however as alargerouantity of water is Withdrawn from the storage heater, thecurrent heater 1' comes into operation, so that it supplies hot Waterthrough the storage heater 2 to the consumption' pipe. The stai ting ofthe gas heating of the current heater 1 takes place on''opening a cookautomaticallycby means of a Valve in' the cennected'by the coupling 8with a suitable known valve devices such l t :instance gas pipe, whichvalveA 1s valve or the like in the Water pipe 4 and is operated by thechanges of pressure arising` in the cold water pipe on the Water flowingthrough. A t the same time the arrangement of. the valve controlled bythe water is sii/h that it only opens t'he gas valvel when a, largequantity of water is drawn 4 plied is warmed again in the storageheater. v

lf on the other hand a large quantity of warm water is withdrawn fromatap the leak of the valve arranged at 4 does not permit a correspondingquantity oi' eolrl water to replace it. The admission. of water is onlypossible if the valve opens and at the same time turns on the gas cockof the current heater. Then a quantity of seater that has been partiallywarmed in the current heater enters the corresi'ionrling to the quantityof warm wasi i iiico to 4ier that has been withdrawn, so that theystorage-heaterH y storage heater can never beexhausted. TheVrh heatingof the storage heater 2 is regulated in the manner known by a. gas valve9, the opening` ot' ivhieh is made dependent on the temperature ot thewater in the storage reserroir 2 ed with a regulating Valve 10 which issensitive to heat and is situated inthe storage reservoir.

Another design and possibility of connection of the two parts of theheating ap- -paratus isshown in Fig. 2. In this arrangement. the wateroutlets 15 and 17 of the two hen ters 11. and 12 are both connecteddirectly to the consumption pipe 1.3; the heaters are. thus disposedinpa-rallel. The feeding of the heaters with water takes place fromacommon cold wat-er pipe 14- by means of a valve 16 which only/permitsthe water to enter when the warm Water` contained in the strage heateris for the most part exhausted. This arrangement has the advantage thatthe current heater 11 only comes into operation on thewithdrawal'oflarge quantities of Water. The

operation of the Valye lo4 may be effected for instance by thetemperature of-the water in the storage heater 12 with theiise of asasap 21 lwhich i is sensitive to heat an'd mechanic, hydraulic Aorpneumatic connections 22, las' shown forl in Fig. 3. Accordingly a.capf21'y filledwith a liquid that boils fat' a low tems and for thispurpose is connects loisV izis -iyieeee'r warmed. the contents of thecap 2l boil,

and. the presence which thereupon crises is transferred through the tubeQ2 into the diaphragm easing 23 and presses through the diaphragmdownward. Thereupon the pis- :ton 25 is pressed down, so lthat the Waterg replaces it rises 'up to the oep 21,

Vco

.inlet 27 to the current vthe/water inlet .20 to the storage heater is'heater'- ie closed and opened. lf writer is 'now withdrawn from theconsumption pipe 13, lat iret only thehot Writer situated in the storageheater 1'2 can flowl to the terp, because to the same er:n tent es WarmWater is withdrawn new cold Water ie supplied from below to the Storageheater l2 the the eo L Lon pipe because it from the fresh .Writer supplyby the l i.. eiide Vnive ter is; drawn ofi that the cold Water which theletter is cooled and the liquid in the tube Z2 conn traete,` and thepressure on the diaphragm Qiis removed. so that this goes beck with thepiston under the pressure ci' the spring 26. 7lhereby the inlet 26 tothe storege heater is closed and the inlet 27 tothe current heater isopened. 'Uiiilery the ec- Ation of the water flowing in the pipe i3? thegas relive of the current heater is autorouticelly opened by thecoupling itl. that the current enter nor: i enters the 'function'warming Water and feeds the consumption p' ie direct with warm Water.The he r l i lo storage heater 12 is regulated ne tiret toi-in by c.valve 19 which is their; .ly operated by the regulating part QQ of thestorage heater which sensitive to heet.

The ofthe Water control valve 1G may be ci. any kind; it cnn also havethe form e wey slide veli'e or Sent valve, und it rnrtner he eitherbuilt into the feed pipe at the pointwhere it lirenches oli to the twoapparatus, es shown, or into the Water consumption pipe et the pointWhere the waiter outlets fromboth heaters unite.

' AS the current heater on coming into operution does not immediatelysupply hot whter, it iS :ulriechle to provide e mixing chamber et thewsiter outlet o'iE both heaters. According to Fig. t such e mixingchamber 29 is arranged :it the piece Where tlie Writer outlets zuid 37join. The storage heater 32 which ret feeds the consumption pipe33,'"iirst fills the mixing chamber 28 with,"

Ae' soon es the 1dou' of Water is hot Water.

transferred tothe current heater-BLM v.tiret the colder waiter coming.reirrehecnerent mire 'i5 or The curil et t" e were supplies no v if' somuch hot We- ,6 and 7 a current heater 41 and e storage heeter 4-"2 arearranged coenxially over cach other and incloeed 1n 'e common casing 40.Fig. 6 shows fr vertical longitudinal section and Fig. 7 in the lefthalf e horizontal sec-A 'tion through the upper current heater and invthe ri ghthnlf a. horizontal section through the storage hesitersituated thereunder. The cold water cornes through the pipe i3 to thedistributing valve 44, which is constructed Isimilarly to that shown inthe design in Fig.

3, and according to its adjustment the Water lowe through the pipe/i5into `the storage heater l2 or through the pige 4:6 into the currentheater il in the manner described below. The pipe 47 goes 'from theupper part of the current heater 41 to the upper mixing' chamber 49,which is seperated by en intermediate plate 48, in the actual storngeheater boiler. Ir)The hot Water which has arrived in the mixing chamberfrom the'storege heater direct or by way ofthe current heater throughthe consumption pipe k5G to the places of consumption.' The ges on theother hand comes in the back part 'of the casing; from above through thepipe 51, then goes through the valve 52, which inthe menner describedchore starts yor stops the gas heating of the current heater. Pipe 51 isalso connected by the pipe 5,3 to the burner 5ft ofthe storage heater,which burns continually :ind is only regulated in respect of the size ofits flame. The regulation of the size or' the Home takes place by meansof a throttle valve plnccdin the pipe 53,Wl1ich is controlled by meansof a. cap 55 which is sensitive toheet and which is placed directly onthe metal Well' of the storage heater 42. At c etill higher point nsecondemp 56 which is sensitive toheet is plecedon the Well of iis theStorage reservoir or vreaches into it and operates the hydraulicconnections of thevr distributing or reverse gear Valve 44 than:l

' 126 The gee pipe 51, 53 and the cold Writer ere indicated by thedotted line 57,'

pipe 4:6, 58 und connected to the valve eesing'i! in the mannerdescribed' ebove'in con nec'tion Withthe parte and 8 of Fig. l, a coni:nelly bnrningfignition dame. 59 end" un openingI and closing burnerpipe 60 beingr fed from the ges pipe. The current heater hee, inthecnrnple shown a rectan 'ruler crees Section and c verticalcombustionc/t 61 round Whiehthe Waterpipe 58-rses heater burner pipe 53,

' distributing valve 44- by means full flame and at the same store ofcold Water by means of its flame in twoparallelxspiral branches and anuppipe open, While a ribbed radiator is constructed inside. The hotWater then goes, as already described, from the Water shell part of thecurrent heater through pipe 47 to thel mixing chamber 49.

The method of Working oi the installation is accordingly as follows:--The cold Water from the pipe 43 goes through the distributing Valve44, which stands at first in a position for sending water exclusivelythrough pipe 45 into the storage hieater 42 to fill thelattercomplctcly. The burner 54 of the storage heater also burns atfirst with time heats the Which goes straight up into the flame shaftbuilt into the storage heater, and the entire contents of the lattertherefore gradually become hot. The cap 55 of the storage which issensitive to heat, is also gradually warmed and as soon vas it hasreached the temperature provided by the adjustmentit throttles the liowof gas through the pipe 53 to such an extent thatfthe quantity of gasreaching the burner 54 onlyv suffices to keep the store of water hot.The apparatus remains in this condition until hot Water is drawn ott atthe places of consumption. As soon as this takes place new. cold Waterenters from below into the storage heater through the pipe 45 in orderto replace the hot Water Withdrawn, and as soon .as the cold Water inthe-storage heater has again risen `to the this reacts thereupon so asto open again the burner pipe ofthe storage heater for 'complete low inorder to heat the cold Water that has entered the storage heater. Ifhou-'- ever the Warm Water consumption increases to such an extent thatthe cold Water in the storage heater rises still further up to the cap56, lthis reacts so as to change over the of the hydraulic connections57, so that cold Water now goes through the pipe 46, valve 52, currentheater pipe 58 and Water shell 62 and then as boiling water to themixing chamber and through it to the places oi consum ption. In thecurrent heater at rst only the ignitioname 59 had been burning, but atthe moment when the current ot water begills to flow in the pipe 46, 58,the flow of water actuates the gasval ve to admit gas to the burner pipe60, so that the current heater can begmto function'. As soon as the-flowof the-current in the current heater ceases,

-the burner of the current heater also stops on account of theconstruction of the automatic valve 52, and is again started as soon aswater flows through again onfaccount ot' very great consumption in thedischarge pipe'O, whereas a Small consumption, as

height of the cap 55,-

already described. does not influence the current heater and is only metby the storage heater. V n

The form of the apparatus-shown in Figs. 8 and 9 has the advantage overthe above designs thatits length is attainedby placing the two parts ofthe apparatus side by side.

analogous or similar in their constructive arrangement. In the casing 63is situated is much less, which:

On the other hand the parts of the apparatus can be quite at the leftthe storage heater. 64 in the form I of a cylinder surrounded with heatinsulation and at the right the rectangular current heater 65 consistingof the tube-cooled combustion chamber lbelow and the Water-heatingdouble shell. with yinterior ribbed body above. T he coldy water isgenerally conducted as above by means of the distributing valve 66,which is under t-he influence of va governing device thatis sensitive toheat,

through the pipe 67 into the storage heaterV and during greatconsumption through pipe 68 into the current heater.` The gas-pipecoming from 69 branches ol` and the left branch '70 71, which issensitive to heat and is dependent on the y burner 72 of the storageheater. The right branch 73goes. through the automatic valve 74 of thecurrent heater to the burner 75 of theturrent heater, the valve 74opening` the pacage when Water Hows through and closing it whenthe waterstops. The-method of Working of this installation is exactly the same asin the preceding case. `Generally only the Storagerheater functions, andwhen the Water therein is hot its burner is turned quite low bythrottling its heating pipe; when the cold water rises iin'side theburner is put on full; vvhen the cold Water rises still further theflou7 of Water in the current heater is started by changing over thedistributing valve 66. The water goes from the valve G6 through pipe G7,storage heater 64 to the mixing chamber 77l or through pipe 68, currentheater G5, connecting pipe 76 to after lioiving through the valve`storage heater 64, goes to the.

the mixing chamber 77, and thence through In this form both-v so thatthe current heater surrounds the storf age heater concentrieally. Thefresh cold Water supplied is conducted through the distributing valve 79either by pipe 80 via the storage heater 8l into the mixing chamber 86or by Wayf the automatic valve 82 and the pipe leading therefrom to thecurrent heater Whiclrconsi'sts of two water-holding double shells 84surrounding the' storage heaterfcncentrically; these-.shells'communicate with each other and supply hot means of the Water throughthe connect-V tion .the apparatus may thefpijoe to the rig ine shown. A.therinostatic appsiatus lf-t which is at about half he height of thestoiege heute controls the distrihnting ifalve i'S with the heip of 'theh 'vdrnuiic connections in such a manner the the current et water Foes othe storage heater Lelong :is the c 'umption of Warm Water remains sosmali het the burner of the storage heute? can eiect the necessaryheetinej capacity iei Warming the fresh ccid' current ci Weten is oniyconducted through the curient heater when a greater -heetingcapaeity isifequired. Another theiiniostetic device 96 operates throughtheccnncctionfQi? to centnoi valve @Uso tha'tges is suppiied to ltheburner 93 in suchquantityes is required to? heating thev Water inthestort-ige tank Si. 1

Fig. ft2- vinaiiy shows the pian of en installation in which water, butthat the hy e current hea-tei? 99 oit incomplete reetangulai' faire,White en the touith side both parts of the eppeatus aie supported by ewall 100.

The inventien is not reetiricted to the forms of execution ot thecentral insteilation for Warm fhater suppiy described and shown, but canhe executed in various otheil ways. For instance the co-exiei design inFig. can he aitei'edso that the burner armatures end egulating Valves oicoth parts of the apparatus are united at one place, preferably underthe lower peet of the apparatus. Likewise in the design 1n Fig. 8 bothparts of the apparatus may be united in another relative position, e. g.with the current heater having its narrow side turned to the hack Wallor with storage heater piaceci before the broad surface of the currentheater. Further in all designs the constructive execution of the parteof very; for instance in the design in Figs. 6 and S, instead oftheconstruction consistingr of double shell box, the type of storageheater shown in Fig 10 can he used having waterholding donde shells 'orchambers with or without cfnmiectinr icniinae, ribs and the like;likewise in the design in Fig. yi() the type ci current heater shown inE'igs. 6 and 8 can he need. tiiitewise combinations of S5 to: the miningchemhei 891,

The humor 91 is .ci with a continualiy hurting ignien veiiipticaistorage l heater 98 is sui'iiounded on oniy three sides tuhecooled comhusticn chamhei' and an upper r1h-ilie\ .hoth constructions or of stillother ,cone'tiruo tions are also. possible.l y It is evident that in.the seine manner Vthe etorageheater can he eenstifncted otherwise thanrin the examples shownw Likewise alterationefmay be made in-ithe1scrangement of the ipes of both partsvoi the apparatus and t einarmature velues, etc., vsome of which are indicated by the first fiveiiguresand the text concerning them. Naturally the hydraulic connectionsshown een be replaced iii/pneumatic or mechanical connections.

What claim is:

i. hier heating apparatus comprising the 'combination of a 4currentheater for heating water yiimving through it, a storage theater forheating Water stored therein,

heating devices for said heaters and a discharge pipe for wlthdrawingWater from' the vheaters so arranged that water drawn therethrough willhe supplied initially by the storage heater and! thereafter by thecurrent heater; substantially as described.

2. if-Vater heating apparatus comprising the combination ot a currentheater for heating nater ioivino: through. it, a storage heater forheating veter stored therein, heatingr devices for the-immens, automaticregliiating means for the heating devices, a `discharefe pipe connectedto the heaters and automatic means for causing' water supplied throughthe discharge pipe to he drawn first from the storage heater andafterward from the current heater substantially as described. y

Tater heating apparatus comprising the combination of a current heaterfor heating water flowing through it, a storageheater for heating Waterstored therein, heating devices, thermostatic controlling means for theheating' devices, a discharge pipe connected to said heaters andthermostatic. controlling means toi; causing water supplied through thedischarge pipe to he drawn first from the storage heater and afterwardfrom the current heater; substantially as' described.

-l.. 1Water heatingf apparatus comprising the combination of a currentheater" Afor heating water flowing through it, a storage heater forheating walter* stored therein, heating devices for the heaters, a Watersuppiy pipe connected to the heaters,-means for controlling the supplyof water from said pipe to one or the other of said heaters, and adischarge pipe connected to the heaters for conveying Water'theretrom;suhstantially as described.

`Water heating; apparatus comprising heating devices for the heaters, aWater sup- -ply pipe connected to the heaters, a valve in said pipecontrolling the flow of water the Combination of pipe to one or theother of said heaters, a thrmostatvin the storagefheater controllingsaid valve and a discharge pipe connected to the-'heaters forwithdrawing water therefrom; substantially as described.

6. Water heating apparatus comprising a current heater for heating WaterHowing through it,a storage heater for heating water stored therein,heating devices for-said heaters and piping connected to the heaters forcausing Water to How first through the current heater and from the ithen through the storage heater5substanvtially as described.

Water heating-apparatus comprising the combination of a currentheaterfor heating water flowing through it, a storage heater for heatingwater stored therein, pipes for lcarrying Water to and from the heaters,heating devices for the heaters, means for automatically regulating theheating device for the current heater in accordance with the speed ofadmission of Water to the current heater and automatic means for causingwater drawn from the heaters to be supplied first from the storageheater land afterward from the current heater; substantially asdescribed.

8. Tater/.heating apparatus comprising the combination of a, currentheater for v'heating Water flow-ing through it, a storageheater-'forfleating water stored therein, pipinglfor conveying Water toand from the heaters,l heating devices for the heaters, a

thermostat in the storage heaterl for regulating the heating device forthat heater,

scribed.

9. Water' heating apparatus'comprising the combination of al currentheater for heating Water flowing therethrough, a lstorlage heater forheating Water stored therein, heating devices forA said heaters, amixing chamber connected to the heaters, a dis' charge ipe connected tothe mixing chamberI and) means for causing water drawn from theapparatus to be4 supplied first from theistorage heater and afterwardfrom the current heater; substantially as described.

10. Water heating apparatus comprising the combination of a storageheater for heating heater for heating `water flowing therethrough,l Kstorage heater, heating devices for the' two heaters, automaticcontrolling means for the heating devices, a water supply' pipeconnected to the two heaters, a discharge pipe connected` tothe twoheaters and automatic thermostatically controlled devices for regulatingthe How of yWater through the two heaters; substantially as described.

4In testimony whereof IafiiX-my signature in presence of two w'tlnesses.f

lVitnesse-s:

` WOLDEMAR HAUPT,

Hmmm HASPER.

means for causing water` water stored therein, a currentl UGO JUNKERS,4l

annular in form and encircling the

